Ingersoll-Rand D108IN-A, Operator'S Manual

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Cod. 710.0138.45.00 Rev04 – 02.2019
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3.1.3 DISPLAY INDICATIONS
The controller is capable of recognizing certain types of anomalies in the drying circuit. In such cases, a message will blink on the
display, alternated to the current dew point value.
MESSAGE
(BLINKING)
CAUSE OUTPUTS ACTIONS
HtA
High dew point value
(delayed alarm)
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard Resettable by switching off the
dryer.
If problem persists call your local
Ingersoll Rand distributor.
Ht2
Very high dew point value
(immediate alarm)
PF1
Interruption or short circuit on the
PTC probe input line
Alarm output ON
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
Resettable by switching off the
dryer. May require replacing the
faulty probe.
If problem persists call your local
Ingersoll Rand distributor.
ESA
The automatic Energy saving
mode activated due to low load
Alarm output OFF
Refrig. Compressor output OFF
Fan output OFF
Drain cycle standard
No action necessary.
Automatic Reset
ES2
ASt
Activated after repeated alarms
Alarm output ON
Refrig. Compressor output OFF
Fan output ON
Drain cycle standard
Call your local Ingersoll Rand
distributor.
Note: PF1 has priority on all other messages.
3.1.4 REMOTE SIGNALING ALARM
The dryer control board is equipped with a dry contact for a remote alarm signal. This is normally open
contact: when an alarm is detected, this contact is closed.
Proceed as follows to activate a remote alarm output:
1. The User must review the diagram below.
2. Disconnect the dryer from electrical power supply, remove cover and left side panel.
3. Connect the alarm circuit to the terminal blocks (See PIC.2).
4.
Replace cover, left side panel and reconnect power.
Alarm Output relays electric features:
Max. 250VAC / 3A – AC 15 (Amp. Inductive)
PIC.2
The activation of the above function is at the User’s discretion. The User will purchase all necessary
installation material. Any operation which needs access to the dryer must be carried out by qualified
personnel.
Cod. 710.0138.45.00 Rev04 – 02.2019
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3.2 BEFORE START UP
Before starting the machine, make sure that all operating parameters correspond to the nominal data.
The dryer is supplied already tested and preset for normal operation, and it doesn’t require any calibration.
Nevertheless, it’s necessary to check the operating performances during the first working hours.
3.3 START UP
The operations specified below must be performed after the first start up and at each start up after a
prolonged inactive period of time due to maintenance operations, or any other reason.
1. Make sure that all instructions contained in chapters INSTALLATION SITE and INSTALLATION
have been observed.
2. Ensure dryer by-pass is open and air inlet/outlet valves closed. (if existing).
3. Activate power supply and press the ON/OFF switch on the control panel for at least 1 second.
(note there is a 2 minute delay before the dryer will start after the dryer is turned on).
Only on D780-950IN-A
- Turn main power switch on position 1.
- Wait for 8 hours before starting the dryer
(the warranty is not valid if this procedure is not respected).
4. Wait 5 to 10 minutes until machine has achieved its standard operating parameters.
5. Slowly open the air outlet valve and successively open the air inlet valve.
6. If existent, close the air by-pass valve.
7. Check if the condensate drain is working properly.
8. Check if all connecting pipes are properly tightened and fixed.
Before disconnecting the dryer from electrical power supply, use ON/OFF switch to stop the
dryer. Otherwise wait 10 minutes before switching the dryer on again, in order to allow freon
pressure to rebalance.
4. MAINTENANCE, TROUBLESHOOTING AND DECOMMISSIONING
4.1 MAINTENANCE
Before attempting any maintenance operation, make sure that:
1. No parts of the system are under pressure.
2. No parts of the system are electrically powered.
WEEKLY OR EVERY 40 HOURS OF OPERATION
Verify the temperature on the control panel display is acceptable.
Visually check if the condensate is drained regularly.
MONTHLY OR EVERY 200 HOURS OF OPERATION
Clean the condenser with compressed air, taking care not to damage the condenser fins..
At the end of the above mentioned operations, check if the dryer is working properly.
Check the condition of any filters installed with the dryer. Replace elements as needed.
YEARLY OR EVERY 2000 HOURS OF OPERATION
Check if the flexible tube used for condensate drainage is damaged and replace it if necessary.
Check if all connecting pipes are properly tightened and fixed.
At the end of the above mentioned operations, check if the dryer is working properly.
EVERY 24 MONTHS OR EVERY 4000 HOURS OF OPERATION (Mod. D600IN-A ÷ D950IN-A)
Replace the fan pressure switch.
4.2 TROUBLESHOOTING
NOTE: FOLLOWING BEHAVIORS ARE NORMAL CHARACTERISTIC OF OPERATION AND NOT TROUBLES
•
Variable speed of the fan. (Mod D12IN-A ÷ D480IN-A)
•
Display of message ESA and ES2 in case of operation without load or low load.
•
A 2 minute delay for dryer to start after pressing the on/off switch.
Troubleshooting and eventual control and/or maintenance operations must be performed by
qualified personnel.
For maintaining the refrigerating circuit of the machine, contact a refrigeration engineer.